www.jbj.co.uk/couplings.html #DriveLineHarmony ® SIT-LOCK 16 Internal Locking Device - Self-centring 35 Reusing the locking device When reusing the locking device, check all the surfaces are clean and show no obvious signs of deformation or seizing. Clean and oil all surfaces and threads. Check the screws have not been deformed. Oil the screws and assemble the locking device as originally supplied. M Screw tightening torque Nm s M Transmissible torque Nm t F Transmissible axial force kN ax P Pressure on shaft N/mm² w P Pressure on hub N/mm² n IMPORTANT: The screw tightening torque M can be reduced by 40% of the value indicated in the table. s M , F , P , P decrease proportionally. t ax w n For further information and larger diameters or dimensions different to those in the table, please contact the jbj Techniques Limited technical office, telephone: +44 (0)1737 767493 or email: info@jbj.co.uk ® SIT-LOCK 16 internal locking device - self-centring Dimensions [mm] Clamping screws DIN 912 12.9 Values with tolerances for shaft h8/hub H8 d x D H H H H I D Number Type 0 1 2 1 Ms [Nm] Mt [Nm] Fax [kN] Pw [N/mm²] Pn [N/mm²] 14 x 25 16 20 26 30 33 42 4 M4 4,9 108 15 183 105 15 x 25 16 20 26 30 33 42 4 M4 4,9 116 15 171 105 16 x 25 16 20 26 30 33 42 4 M4 4,9 124 15 160 105 18 x 25 16 20 26 30 33 42 4 M4 4,9 139 15 143 105 19 x 25 16 20 26 30 33 42 4 M4 4,9 147 15 135 105 20 x 30 16 20 26 31 39 50 4 M5 10,0 253 25 210 140 22 x 30 16 20 26 31 39 50 4 M5 10,0 278 25 191 140 24 x 30 16 20 26 31 39 50 4 M5 10,0 303 25 175 140 25 x 36 16 20 26 31 45 55 4 M5 10,0 316 25 168 115 28 x 36 16 20 26 31 45 55 4 M5 10,0 354 25 150 115 30 x 36 16 20 26 31 45 55 4 M5 10,0 379 25 140 115 32 x 42 16 20 28 33 51 62 4 M5 10,0 405 25 131 100 35 x 42 16 20 28 33 51 62 4 M5 10,0 443 25 120 100 38 x 44 16 20 28 34 54 66 4 M6 17,0 678 36 156 135 40 x 48 16 20 28 34 58 70 4 M6 17,0 714 36 148 135 42 x 48 16 20 28 34 58 70 4 M6 17,0 749 36 141 125 45 x 55 20 25 35 43 67 82 4 M8 41,0 1.484 66 194 160 48 x 55 20 25 35 43 67 82 4 M8 41,0 1.583 66 182 160 50 x 62 20 25 35 43 74 89 4 M8 41,0 1.649 66 175 140 55 x 62 20 25 35 43 74 89 4 M8 41,0 1.813 66 159 140 60 x 72 20 25 35 43 84 99 4 M8 41,0 1.978 66 146 120 65 x 72 20 25 35 43 84 99 4 M8 41,0 2.143 66 135 120
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